Yeah I know how ya feel, I'm from sunny Queensland Australia and i have beeen used to meeting up with mates every weekend, like 10 or 15 of us every weekend...
I'm going through the same thing at the moment, I'm 29 and my swiss wife and I are trying to make it more comfortable, hence why I'm on here today...
To help we are making more of our weekends like getting out and about and seeing more of the country, off to belgium in july for an open air festival, just gotta keep occupied too and i've recently vowed to put more effort into learning the language as i rekkon thats a biggie, not being able to join in on conversations at work etc...

Good Luck, and wish me the same !!!